18 40 020 Remove and install/replace right exhaust manifold (S63 B44 T 0/2)

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Special tools required:

2 249 161

WARNING: Risk of burning!
Only perform this repair work on an engine that has cooled down.

Necessary preliminary tasks:

Remove left TURBOCHARGER .
Remove right TURBOCHARGER .
Remove ALTERNATOR

Release screws (1).

Tightening torque 11 65 5AZ .

Fig 1: Identifying Right Exhaust Manifold Screws

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Release screws (1).

Tightening torque 11 65 5AZ .

Remove heat shield (2).

Fig 2: Identifying Heat Shield With Screws

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Release screws (1).

Tightening torque 11 65 7AZ .

Remove heat shield (2) on left and right.

Fig 3: Identifying Heat Shield Screws On Left And Right

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Release screws with spacer sleeves (1 to 8).

Remove exhaust manifold, bank 2.

Installation note:

Replace gasket.

Fig 4: Left Exhaust Manifold Bolts Tightening/Loosening Sequence

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Release screws with spacer sleeves (1 to 8).

Remove exhaust manifold, bank 1.

Installation note:

Replace gasket.

Fig 5: Right Exhaust Manifold Bolts Tightening/Loosening Sequence

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Installation note:

Replace gasket (1) for banks 1 and 2.

Seal beads faces the exhaust manifold.

Fig 6: Identifying Gasket (Banks 1 And 2)

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Position universal bank exhaust manifold, bank 1.

Screw in special tool 2 249 161 at position (3 and 4).

Tightening torque: 11 62 1AZ .

Join screws with spacer sleeves (1 to 2) to 10 Nm.

Remove special tool 2 249 161 and insert screws with spacer sleeves at position (3 and 4) and join to 10 Nm.

Insert screws with spacer sleeves at position (5 to 8).

Secure all screws with spacer sleeves (1 to 8).

Fig 7: Right Exhaust Manifold Bolts Tightening/Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque: 11 62 2AZ .

Position universal bank exhaust manifold, bank 2.

Screw in special tool 2 249 161 at position (3 and 4).

Tightening torque: 11 62 1AZ .

Join screws with spacer sleeves (1 to 2) to 10 Nm.

Remove special tool 2 249 161 and insert screws with spacer sleeves at position (3 and 4) and join to 10 Nm.

Insert screws with spacer sleeves at position (5 to 8).

Fig 8: Left Exhaust Manifold Bolts Tightening/Loosening Sequence

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Secure all screws with spacer sleeves (1 to 8).

Tightening torque: 11 62 2AZ .

Replace gaskets (1).

Fig 9: Identifying Exhaust Manifold Gaskets

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Assemble engine.